Soliton Solution for the Spin Current in Ferromagnetic Nanowire

Abstract

We investigate the interaction of a periodic solution and one-soliton solution for the spin-polarized current in a uniaxial ferromagnetic nanowire. The amplitude and wave number of the periodic solution for the spin current have the different contribution to the width, velocity, and the amplitude of soliton solution, respectively. Moreover, we found that the soliton can be trapped only in space with a proper condition. At last we analyze the modulation instability and discuss dark solitary wave propagation for the spin current on the background of a periodic solution. In some special cases the solution can be expressed by the linear combination of periodic solution and soliton solution.

7 pages 4 figures

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• Spintronics: Fundamentals and applications
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• Mechanisms of spin-polarized current-driven magnetization switching
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• Dark Soliton Interaction of Spinor Bose-Einstein Condensates in an Optical Lattice
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• Domain-wall solutions of spinor Bose-Einstein condensates in an optical lattice
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• Correlation-induced valley topology in buckled graphene superlattices
• Interaction of a nonlinear spin wave and magnetic soliton in a uniaxial anisotropic ferromagnet
• Riemann-Hilbert problem for the modified Landau-Lifshitz equation with nonzero boundary conditions
• Screw-pitch effect and velocity oscillation of domain-wall in ferromagnetic nanowire driven by spin-polarized current
• Negative Magnetoresistance and Spin Filtering of Spin-Coupled Diiron-Oxo Clusters
• Narrow autoresonant magnetization structures in finite length ferromagnetic nanoparticles
• Excitation and control of large amplitude standing magnetization waves
• Long-time asymptotics in the modified Landau-Lifshitz equation with nonzero boundary conditions
• Current-induced instability of domain walls in cylindrical nanowires
• Quantum Quench dynamics in XY spin chain with ferromagnetic and antiferromagnetic interactions
• Rebound-through transition of bright-bright solitons collision in two species condensates with repulsive interspecies interactions